Running NodeJS

Starting GraphQL Server in NodeJS

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Starting the Server Flow

If you are not in the node-dev shell yet, get in there: from your host's terminal shell (PowerShell on Windows), enter node-dev shell:

docker exec -it node-dev bash
cd /myapp

We'll start the server via the npm start command that has an override in package.json channeling it through babel. As was discussed in the "Use Case and Project Components" chapter.

npm start

After a brief hesitation, you'll see info and debug messages coming up on the screen from the logger commands and Mongoose messages from the mongoose debug logging.

The process runs in the node-dev bash shell, so to stop it you do CTRL-C while in the shell. In case you'd like to check something out in the running container while your first shell is occupied by the NodeJS server process, you can open more container shell sessions by launching docker exec -it node-dev bash from your host's terminal shell.

In the dev mode, you do want to run NodeJS "interactively" so that you can see the real-time logs as you test functionality via the browser. Multiple displays would come handy.

You can check docker stats on the host to see how much resources the containers take up. Not bad at all! Neither NodeJS nor MongoDB are resource hogs, thankfully.

Quick Test from the Browser

On the host, open a browser and navigate to http://localhost:8080/graph (change the 8080 port to the one you used in the docker run when launching node-dev, if it was different)

You'll see a GraphiQL work screen. Great, everything works!


Back in the code now - to see what is actually running

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